In:
Magnetic Resonance in Chemistry, Wiley, Vol. 23, No. 1 ( 1985-01), p. 41-47
Abstract:
The 13 C and 31 P NMR data of 26 bridgehead phosphorylated adamantanes, adamantyl‐P(O)XY, are reported. The 13 C chemical shifts of the α‐carbons are dependent on the X and/or Y group electronegativities, and can be interpreted by assuming p π d π electron back‐donation from X/Y to P. As expected, 31 P chemical shifts cannot be rationalized simply in similar terms. There is an extraordinarily good correlation between α‐carbon chemical shifts and the corresponding 1 J (CP) values. A tentative interpretation, based on the proportions of s and p character in phosphorus bond orbitals, is presented. Surprisingly large 4 J (PP) values were observed for two bis‐1,3‐dihalophosphophoryladamantanes.
Type of Medium:
Online Resource
ISSN:
0749-1581
,
1097-458X
DOI:
10.1002/mrc.1260230112
Language:
English
Publisher:
Wiley
Publication Date:
1985
detail.hit.zdb_id:
1475029-6
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